Drug Interactions between levothyroxine and Prevpac
This report displays the potential drug interactions for the following 2 drugs:
- levothyroxine
- Prevpac (amoxicillin/clarithromycin/lansoprazole)
Interactions between your drugs
clarithromycin lansoprazole
Applies to: Prevpac (amoxicillin / clarithromycin / lansoprazole) and Prevpac (amoxicillin / clarithromycin / lansoprazole)
Clarithromycin may increase the blood levels and side effects of lansoprazole in some people. Contact your doctor if you experience diarrhea or other intestinal problems. You may need a dose adjustment if you take both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
levothyroxine lansoprazole
Applies to: levothyroxine and Prevpac (amoxicillin / clarithromycin / lansoprazole)
Taking levothyroxine with lansoprazole may interfere with the absorption of levothyroxine and reduce its effectiveness. Contact your doctor if you experience signs and symptoms of reduced thyroid function such as fatigue; sluggishness; constipation; depression; hoarseness; unexplained weight gain; sensitivity to cold; pale, dry skin; muscle aches, weakness, or tenderness; joint pain, stiffness, or swelling; heavier than normal menstruation periods; or brittle fingernails and hair. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor
amoxicillin clarithromycin
Applies to: Prevpac (amoxicillin / clarithromycin / lansoprazole) and Prevpac (amoxicillin / clarithromycin / lansoprazole)
Information for this minor interaction is available on the professional version.
Drug and food interactions
levothyroxine food
Applies to: levothyroxine
The timing of meals relative to your levothyroxine dose can affect absorption of the medication. Therefore, levothyroxine should be taken on a consistent schedule with regard to time of day and relation to meals to avoid large fluctuations in blood levels, which may alter its effects. In addition, absorption of levothyroxine may be decreased by foods such as soybean flour, cotton seed meal, walnuts, dietary fiber, calcium, and calcium fortified juices. These foods should be avoided within several hours of dosing if possible. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
When levothyroxine is given during continuous enteral nutrition (tube feedings) for more than 7 days, the tube feeding should be interrupted for at least one hour before and one hour after the dose of levothyroxine. You may need more frequent blood tests to monitor levothyroxine levels.
levothyroxine food
Applies to: levothyroxine
Using multivitamin with minerals together with levothyroxine may decrease the effects of levothyroxine. You should separate the administration of levothyroxine and multivitamin with minerals by at least 4 hours. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
clarithromycin food
Applies to: Prevpac (amoxicillin / clarithromycin / lansoprazole)
Information for this minor interaction is available on the professional version.
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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